Help! New build wont power up properly

dudload · 8 Oct 2011 at 14:59

Hi All,

My old computer just stopped working the other day, which was a good excuse to get a brand new build. However, ive got serious problems as it wont start up properly - when i hit the on switch everything starts powering up, but it just turns off and auto resets.

Weird thing is, absolutely everything in the PC is brand new!

Ive disconnected the reset cable in case i had it wired incorrectly and have just plugged monitor straight into onboard graphics out.

Heres the build

Core i5 2500k
Corsair Vengeance 8gb
Corsair 650W TX v2
Crucial M4 SSD
MSI z68 - gd65

Any help would be massively appreciated!

olivier renault · 8 Oct 2011 at 15:08

components look good. Does it post into the bios? Problem eith your case power / reset button? You tried powering up outside the case?

dudload · 8 Oct 2011 at 15:37

unfortunately not - just powers up, all LED's come on, fans spin then resets. after couple of seconds the same happens again, but it just keeps going in a loop.

PSU is brand new and have disconnected the reset button - getting v worried!

tipes · 8 Oct 2011 at 15:43

dudload said:
unfortunately not - just powers up, all LED's come on, fans spin then resets. after couple of seconds the same happens again, but it just keeps going in a loop.

PSU is brand new and have disconnected the reset button - getting v worried!

Maybe a silly question, but have you connected the 8 pin power lead from psu to mobo, and also check that all cables are installed correctly and making good contact. Have you tried a Graphics card instead of on board?
Could also try re seating cpu - just in case. Check memory is installed ok and in the right slots. Try just one stick of memory in the first slot nearest the cpu.

Mark

dudload · 8 Oct 2011 at 15:47

thank you all - it was the memory - MB had the slots mis-numbered so i didnt have any in primary slot!!

have a good weekend (you sure as hell made mine better!)

tipes · 8 Oct 2011 at 16:04

dudload said:
thank you all - it was the memory - MB had the slots mis-numbered so i didnt have any in primary slot!!

have a good weekend (you sure as hell made mine better!)

There you go then - prob solved.Have a good weekend.

Mark

dudload · 8 Oct 2011 at 17:58

aargh - after a couple of restarts its doing the same thing again!!

potential faulty memory? this is driving me slightly insane

GizmoTheMogwai · 8 Oct 2011 at 18:03

dudload said:
aargh - after a couple of restarts its doing the same thing again!!

potential faulty memory? this is driving me slightly insane

I had a similar problem with my brand new gear, I had to RMA the motherboard. However, it could well be an issue with my CPU, but I guess i'll find out soon enough.

MrShens · 8 Oct 2011 at 18:03

Take the CPU out of its socket. Turn it upside down and take a look at the pins. Make sure they aren't bent.

tipes · 8 Oct 2011 at 18:17

MrShens said:
Take the CPU out of its socket. Turn it upside down and take a look at the pins. Make sure they aren't bent.

Think you'll find the pins are on the mobo - but still a good idea to check for bent pins as they are quite fragile and easily bent if you are not careful. To the op - suggest you have a look.

Have you tried different mem sticks in the one socket - to find out if one stick is faulty?

Mark

MrShens · 8 Oct 2011 at 18:28

tipes said:
Think you'll find the pins are on the mobo
Mark

Didn't realise this was the case on the i5's. I'm an AMD guy myself.

TheJackal · 8 Oct 2011 at 18:31

The Pins are actually on the socket but yes check you havent bent any.
You may need a magnifying glass, i nearly went boss eyed checking all mine lol

dudload · 8 Oct 2011 at 18:40

thanks all - will have a look.

really strange that it started to work when i put the mem in the correct slots then decided to stop all of a sudden.

not sure it could be the CPU pins as i havent done anything with it since it was working. thinking its def a motherboard or memory problem!

scottmuir424 · 8 Oct 2011 at 19:32

do you have spare parts you can try process of elimination

dudload · 8 Oct 2011 at 19:36

unfortunately not - old PC is core 2 duo so memory doesnt fit, PSU doesnt have 8 pin mobo connector and cant try mobo switching.

probably going to have to RMA. should i return both the Mobo & Memory at the same time or one by one (wondering what etailers policy towards this sort of stuff is) btw. it was through a competitor, not overclockers unfortunately.

welshdragon · 8 Oct 2011 at 19:46

Try it with 1 stick at a time, should elminate memory as cause? Might also be worth clearing the cmos now as well.

Buchanan0204 · 8 Oct 2011 at 19:47

MrShens said:
Take the CPU out of its socket. Turn it upside down and take a look at the pins. Make sure they aren't bent.

lol

dudload · 8 Oct 2011 at 20:53

tried 1 stick at a time in every memory slot and still no joy. think i'm going to RMA the memory, CPU and mobo at the same time. that wise, or should it be done 1 by 1?

IvanDobskey · 8 Oct 2011 at 21:10

If you've tried both memory sticks on their own and still get the problem then I'd rule out the memory for now. I'd also rule out the CPU as they either work or they don't. My bets are on the motherboard (most likely) or the PSU. Could also be something shorting out due to incorrect mounting of the motherboard. I'd be tempted to take the board out of the case and try it again. Note: Just because the stuff is brand new, doesn't mean it's unlikely to be faulty.

tipes · 8 Oct 2011 at 22:01

IvanDobskey said:
If you've tried both memory sticks on their own and still get the problem then I'd rule out the memory for now. I'd also rule out the CPU as they either work or they don't. My bets are on the motherboard (most likely) or the PSU. Could also be something shorting out due to incorrect mounting of the motherboard. I'd be tempted to take the board out of the case and try it again. Note: Just because the stuff is brand new, doesn't mean it's unlikely to be faulty.

Trying outside of the case is the last best hope as suggested above - if still nothing then time to RMA the board I would suggest. You could try removing the cmos battery for about 20 mins and then try outside of the case - once you have replaced the cmos battery of course - with just one stick of ram and graphics card or onboard graphics(whichever) and see if that brings it back to life.

Mark